Konrad Sprenger is the pseudonym of Joerg Hiller, born in 1977, a Berlin-based composer, music producer and artist. He founded the record label Choose, for which he has produced recordings by artists Ellen Fullman, Arnold Dreyblatt, Robert Ashley and Terry Fox among others. Since 2000, he has performed and worked regularly with minimal music composer Arnold Dreyblatt and composer/instrument maker Ellen Fullman, the bands Ethnostress and Ei, and collaborated with the art collective Honey-Suckle Company. Recently, he has engaged in live performances with a computer-controlled multichannel electric guitar. His music and installations have been presented at Hamburger Bahnhof, Berghain, Giti Nourbakhsch Gallery, Podewil, Schaubühne, Pavillon der Volksbühne, Berlin; Badischer Kunstverein, Karlsruhe; Kunsthalle, Baden-Baden; Frankfurt Kunstverein; Künstlerhaus Stuttgart; Kunsthalle Basel; MoMA PS1, New York; Cubitt Gallery, London; Sonar, Barcelona among others. Konrad Sprenger explores rhythmic patterns based on the Euclidean algorithm to evoke a kind of cognitive insecurity through metric dissonance. Sprenger considers guitar strings as generators of frequencies, tuned and set in motion by various electronically controlled mechanical actions. The music refers to the insistent rhythms of Minimalism, Krautrock and Techno, and their common interest in transcendence through propulsive, full-spectrum sound. The custom instrument was conceived by Konrad Sprenger and made by Sukandar Kartadinata and Daniel van den Eijkel.